12P/Pons-Brooks (Record n° 27550)
Orbital period : 71.00 years
NASA/JPL elements
IAU/MPC elements
On 2023 Sep 08 22h51 UT by Patrick Ditz
(Copyright Patrick Ditz)Nuclear magnitude (m2) 16.6 m2 standard deviation 0.0 Aperture radius used for m2 5.6 " Coma diameter 8.4 ' r (dist/Sun) 3.362 AU d (dist/Earth) 3.241 AU Right ascension 17 20 51.98 h m s Declination +50 49 10.4 ° ' " MPC report COD K97
CON P.Ditz [patrick.ditz@wanadoo.fr]
OBS P.Ditz
MEA P.Ditz
TEL 0.54-m f/3.75 reflector + CCD
ACK MPCReport file updated 2023.09.09 10:38:44
AC2 patrick.ditz@wanadoo.fr
NET PPMXL
0012P C2023 09 08.95198 17 20 51.98 +50 49 10.4 16.6 V K97
0012P C2023 09 08.95912 17 20 51.82 +50 49 06.0 16.6 V K97
0012P C2023 09 08.96408 17 20 51.70 +50 49 02.9 16.6 V K97
Instrumental configuration Config1 Instrument T540 Instrument type Newton Instrument aperture (0=naked eye) 540 mm Instrument focale length 2025 mm Instrument focale/diameter 3.75 Filter(s) L Camera ATIK 460EX Sensor CCD Sensor size 10x12.5 mm2 Sensor pixels number 2749x2199 Sensor temperature -10 °C Binning 2x2 Mount VMA300 Exposure total time 1980 s Exposure details 33x60s Moon phase 123 ° Moon elongation 99 ° Air mass 1.5 Observatory MPC code K97 Location Freconrupt Reference stars catalog PPMXL
Used softwares Astrometrica Resulting picture sampling (scale) 0.92 "/pix Image processing Prism11 & Gimp Remarks or comments Deux comas sont présentes: La plus étendue de diamètre 8'4 et la plus concise de diamètre 1'2 Observation submission date 2023 Sep 09 09h35m27s Observation modification date 2023 Sep 09 09h44m43s